Record
Court opinion
1967-12-18
CourtListener (Free Law Project), text of the opinion of the Supreme Court of the United States
Katz v. United States, 389 U.S. 347 (1967)
Supreme Court decision of December 18, 1967 holding that FBI recording of a gambler's calls from a public telephone booth was a search and seizure under the Fourth Amendment, and that the trespass doctrine of Olmstead was no longer controlling.
- Date
- 1967-12-18
- Kind
- court-opinion
- Source
- CourtListener (Free Law Project), text of the opinion of the Supreme Court of the United States
- Retrieved
- 2026-10-12
- Docket
- 389 U.S. 347 (1967), No. 35
- Rights
- Opinion of the Supreme Court of the United States, a federal work in the public domain under 17 U.S.C. § 105. CourtListener (Free Law Project) hosts the text; it is not the source institution.
Decided December 18, 1967; No. 35. Katz was convicted in the Southern District of California on an eight-count indictment for transmitting wagering information by telephone from Los Angeles to Miami and Boston, in violation of 18 U.S.C. 1084 (the 1961 Wire Act, filed separately). The government’s evidence included recordings FBI agents made with a device attached to the outside of a public telephone booth.
The Court held: “The Government’s activities in electronically listening to and recording the petitioner’s words violated the privacy upon which he justifiably relied while using the telephone booth and thus constituted a “search and seizure” within the meaning of the Fourth Amendment.” (389 U.S. at 353.) Earlier the opinion says: “For the Fourth Amendment protects people, not places.” (389 U.S. at 351.)
On Olmstead v. United States (1928), the opinion says “the underpinnings of Olmstead and Goldman have been so eroded by our subsequent decisions that the “trespass” doctrine there enunciated can no longer be regarded as controlling.” Katz was decided six months before Title III of the 1968 Act.